Definition

A type of mineral that can be brown, gray, white, or pale green, often used for making jewelry and decorative items.

Example

Sillimanite is prized for its unique colors and is often used in fine jewelry.

Conversation

Have you ever seen a piece of sillimanite before?

No, I haven't! What does it look like?

It's usually a brown or pale green mineral, really pretty.

That sounds interesting! I’d love to see it in person.

Synonyms & Antonyms

Root Explanation

Sillimanite is derived from the name of the American geologist Benjamin Silliman, combined with the suffix '-ite' (meaning a mineral or rock). The word refers to a specific mineral named in honor of Silliman.

Memory Tip

Think of Benjamin Silliman, the geologist, to remember that 'sillimanite' is a mineral named after him.

Visually Confused Words